3581046 has 48 divisors (see below), whose sum is σ = 8989344. Its totient is φ = 1009152.

The previous prime is 3581041. The next prime is 3581047. The reversal of 3581046 is 6401853.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3581041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12076 + ... + 12368.

It is an arithmetic number, because the mean of its divisors is an integer number (187278).

Almost surely, 2^3581046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3581046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4494672).

3581046 is an abundant number, since it is smaller than the sum of its proper divisors (5408298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3581046 is a wasteful number, since it uses less digits than its factorization.

3581046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 3581046 is about 1892.3651867438. The cubic root of 3581046 is about 152.9924384319.

Adding to 3581046 its reverse (6401853), we get a palindrome (9982899).

The spelling of 3581046 in words is "three million, five hundred eighty-one thousand, forty-six".